阅读说明：本技术 兼容对外放电和对车充电功能的充电枪及充电装置 (Charging gun and charging device compatible with external discharging and vehicle charging functions ) 是由 周林 巫文科 杨勇 张超 杨远航 于 2020-05-06 设计创作，主要内容包括：本发明公开一种兼容对外放电和对车充电功能的充电枪及充电装置,涉及电动汽车充电技术领域,能够供电插头、控制盒、插座及充电插头集成为一体化结构,具有携带方便、使用灵活的特点。该充电枪包括供电插头、控制盒、插座及充电插头,供电插头、控制盒和充电插头通过主线依次串联,插座与主线并联连接；供电插头连接供电车辆,用于从供电车辆获取电能；插座用于将获取的电能通过插座输出给负载设备；控制盒用于控制主线的通断状态,在主线导通时将电能通过充电插头输出给充电车辆。该充电装置包括上述方案所提的兼容对外放电和对车充电功能的充电枪。(The invention discloses a charging gun and a charging device which are compatible in external discharging and vehicle charging functions, relates to the technical field of electric vehicle charging, can integrate a power supply plug, a control box, a socket and a charging plug into an integrated structure, and has the characteristics of convenience in carrying and flexibility in use. The charging gun comprises a power supply plug, a control box, a socket and a charging plug, wherein the power supply plug, the control box and the charging plug are sequentially connected in series through a main line, and the socket is connected with the main line in parallel; the power supply plug is connected with the power supply vehicle and used for obtaining electric energy from the power supply vehicle; the socket is used for outputting the acquired electric energy to load equipment through the socket; the control box is used for controlling the on-off state of the main line, and when the main line is conducted, the electric energy is output to the charging vehicle through the charging plug. The charging device comprises the charging gun which is compatible with the functions of external discharging and vehicle charging and is provided by the scheme.)

1. A charging gun compatible with external discharging and vehicle charging functions is characterized by comprising a power supply plug, a control box, a socket and a charging plug, wherein the power supply plug, the control box and the charging plug are sequentially connected in series through a main line, and the socket is connected with the main line in parallel;

the power supply plug is connected with a power supply vehicle and used for obtaining electric energy from the power supply vehicle;

the socket is used for outputting the acquired electric energy to load equipment through the socket;

the control box is used for controlling the on-off state of the main line, and outputting electric energy to the charging vehicle through the charging plug when the main line is conducted.

2. The charging gun of claim 1, wherein the socket and the control box are of an integrally formed design.

3. The charging gun according to claim 1 or 2, wherein the power supply plug and the charging plug are both composed of a gun core and a handle, the gun core comprises a CC terminal, a CP terminal, an L1 terminal, a PE terminal, an N terminal, an electric connection module and a charging module, the L1 terminal is connected with a live wire in a main wire, the N terminal is connected with a neutral wire in the main wire, and the PE terminal is connected with a ground wire in the main wire;

the electric connection module is used for detecting the electric connection state with the vehicle-mounted charger through the CC terminal;

the charging module is used for executing charging action after the electric connection module confirms the electric connection.

4. The charging gun according to claim 3, wherein the control box comprises a live wire switch, a zero wire switch, a switch controller and a detection module, the live wire switch and the zero wire switch are correspondingly arranged on a live wire and a zero wire in a main wire, one end of the switch controller is connected with a charging module in a charging plug through the detection module, and the other end of the switch controller is respectively connected with the live wire switch and the zero wire switch;

and the switch controller controls the live wire switch and the zero line switch to be closed after receiving the electric connection confirmation signal of the charging module in the charging plug, otherwise controls the live wire switch and the zero line switch to be disconnected.

5. Charging gun according to claim 4, characterized in that the live end of the socket is connected to live in the main line between the live switch and the L1 terminal, the neutral end of the socket is connected to neutral in the main line between the neutral switch and the N terminal, and the earth end of the socket is connected to earth in the main line.

6. The charging gun according to claim 4, wherein the detection module comprises a voltage conversion module, a PWM module, a switch S1, a resistor R1 and a voltage detection point, one end of the voltage detection point is respectively connected with the switch controller and the resistor R1, the resistor R1 is connected with one end of the PWM module in series through the switch S1, the other end of the PWM module is connected with the switch controller, the other end of the voltage detection point is sequentially connected with the vehicle detection control unit in the charging vehicle and an electric connection module in the charging plug through the charging module in the charging plug, and the electric connection module is connected with a ground wire in a main wire through a resistor RC;

and the switch controller is used for controlling the opening and closing states of the live wire switch and the zero line switch according to the voltage value detected by the voltage detection point.

7. The charging gun according to claim 6, wherein the vehicle detection control unit comprises a vehicle detection control module, a resistor R2, a resistor R3 and a control switch S2, one end of the resistor R2 and the resistor R3 is connected in parallel with the charging module in the charging plug, the other end of the resistor R3 is grounded, the other end of the resistor R2 is grounded through the control switch S2, one end of the vehicle detection control module is connected with the control switch S2, and the other end of the vehicle detection control module is connected with the electrical connection module in the charging plug.

8. A charging device comprising the charging gun compatible with the external discharge and vehicle charging functions of any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of electric automobile charging, in particular to a charging gun and a charging device which are compatible in external discharging and vehicle charging functions.

Background

At present, in order to meet the external power supply requirement of an electric vehicle, the electric vehicle generally has an alternating current charging function, a V2L (vehicle-to-load) discharging function and a vehicle-to-vehicle (V2V) discharging function, both a vehicle-to-vehicle charging scheme and a vehicle-to-load discharging scheme are widely applied, the vehicle-to-vehicle charging is to charge another vehicle by inverting direct current of the electric vehicle into three-phase alternating current high voltage, and the vehicle-to-load discharging is to supply power to general electric equipment through a socket.

Disclosure of Invention

The invention aims to provide a charging gun and a charging device which have the functions of discharging and charging a vehicle, can integrate a power supply plug, a control box, a socket and a charging plug into an integrated structure, and have the characteristics of convenience in carrying and flexibility in use.

In order to achieve the above object, a first aspect of the present invention provides a charging gun compatible with external discharging and vehicle charging functions, including a power supply plug, a control box, a socket and a charging plug, wherein the power supply plug, the control box and the charging plug are sequentially connected in series through a main line, and the socket is connected in parallel with the main line;

the power supply plug is connected with a power supply vehicle and used for obtaining electric energy from the power supply vehicle;

the socket is used for outputting the acquired electric energy to load equipment through the socket;

the control box is used for controlling the on-off state of the main line, and outputting electric energy to the charging vehicle through the charging plug when the main line is conducted.

Preferably, the socket and the control box are in an integrally formed design structure.

Preferably, the power supply plug and the charging plug are both composed of a gun core and a handle, the gun core comprises a CC terminal, a CP terminal, an L1 terminal, a PE terminal, an N terminal, an electrical connection module and a charging module, the L1 terminal is connected with a live wire in a main wire, the N terminal is connected with a zero wire in the main wire, and the PE terminal is connected with a ground wire in the main wire;

the electric connection module is used for detecting the electric connection state with the vehicle-mounted charger through the CC terminal;

the charging module is used for executing charging action after the electric connection module confirms the electric connection.

Preferably, the control box comprises a live wire switch, a zero line switch, a switch controller and a detection module, the live wire switch and the zero line switch are correspondingly arranged on a live wire and a zero line in the main wire, one end of the switch controller is connected with the charging module in the charging plug through the detection module, and the other end of the switch controller is respectively connected with the live wire switch and the zero line switch;

and the switch controller controls the live wire switch and the zero line switch to be closed after receiving the electric connection confirmation signal of the charging module in the charging plug, otherwise controls the live wire switch and the zero line switch to be disconnected.

Furthermore, the live wire end of the socket is connected with the live wire in the main wire between the live wire switch and the L1 terminal, the zero wire end of the socket is connected with the zero wire in the main wire between the zero wire switch and the N terminal, and the grounding end of the socket is connected with the ground wire in the main wire.

Further, the detection module comprises a voltage conversion module, a PWM module, a switch S1, a resistor R1 and a voltage detection point, one end of the voltage detection point is respectively connected with the switch controller and the resistor R1, the resistor R1 is connected with one end of the PWM module in series through the switch S1, the other end of the PWM module is connected with the switch controller, the other end of the voltage detection point is sequentially connected with a vehicle detection control unit in the charging vehicle and an electric connection module in the charging plug through the charging module in the charging plug, and the electric connection module is connected with a ground wire in the main line through the resistor RC;

and the switch controller is used for controlling the opening and closing states of the live wire switch and the zero line switch according to the voltage value detected by the voltage detection point.

Further, the vehicle detection control unit comprises a vehicle detection control module, a resistor R2, a resistor R3 and a control switch S2, wherein one end of the resistor R2 and one end of the resistor R3 are connected in parallel with the charging module in the charging plug, the other end of the resistor R3 is grounded, the other end of the resistor R2 is grounded through the control switch S2, one end of the vehicle detection control module is connected with the control switch S2, and the other end of the vehicle detection control module is connected with the electric connection module in the charging plug.

Compared with the prior art, the charging gun compatible with the functions of external discharging and vehicle charging provided by the invention has the following beneficial effects:

the invention provides a charging gun compatible with external discharging and vehicle charging functions, which consists of a power supply plug, a control box, a socket and a charging plug, wherein the charging plug, the control box and the charging plug are sequentially connected in series through a main line, then the socket is connected with the main line in parallel, and the power supply plug can be connected with a power supply vehicle when a vehicle-to-load discharging scheme is provided, so that electric energy in the power supply vehicle can be output to the socket through the main line and provided for external load equipment. When a vehicle-to-vehicle charging scheme is provided, the power supply plug is connected with the power supply vehicle, the charging plug is connected with the charging vehicle, the on-off state of the main line is controlled by the control box, and electric energy in the power supply vehicle is output to the charging vehicle through the charging plug when the main line is conducted.

Therefore, the power supply plug, the control box, the socket and the charging plug are integrated into an integrated structure, and when a vehicle-to-load discharging and vehicle-to-vehicle charging scheme is provided, a charging gun does not need to be assembled and disassembled, so that the charging gun has the characteristics of convenience in carrying and flexibility in use.

The second aspect of the invention provides a charging device, which comprises the charging gun compatible with the functions of external discharging and vehicle charging.

Compared with the prior art, the charging device provided by the invention has the same beneficial effects as the charging gun compatible with the functions of external discharging and vehicle charging provided by the technical scheme, and the detailed description is omitted.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a charging gun compatible with external discharging and vehicle charging functions according to a first embodiment of the present invention;

fig. 2 is a circuit diagram of a charging gun compatible with discharging and charging functions of a vehicle according to an embodiment of the present invention.

1-power supply plug, 2-charging plug;

3-control box, 4-socket;

5-main line.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.